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Forum > Renewables

Dam Hydropower

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AGelbert:
Ghana's 400-MW Bui hydropower plant completed






http://www.hydroworld.com/articles/2013/12/ghana-s-400-mw-bui-hydropower-plant-completed.html

AGelbert:
Nuclear-Strength Linthal 2015 Takes Shape In Swiss Alps


Yes, this is a picture of a dump truck being hoisted up a mountain on cables. And no, it’s not photoshopped. You’re looking at the largest cable lift in the world, almost 2 kilometers long and 600 meters high, with two towers, a load capacity of up to 40 tons, cables 90 mm thick, and a pretty good speed of 5 meters per second.

The system took three years to build. And transport dumpers are not the heaviest loads it can carry  :o, although they’re probably the most photogenic. ;D  The system can also lift whole ship containers.

Next surprise: this mammoth cable system is only a temporary fixture. It’s there to support construction of a huge $1.5 billion hydroelectric pumped-storage power plant called Linthal 2015.
Workers from the Linth-Limmern AG utility, its partners the Canton of Glarus and Axpo AG, are now building this electric Godzilla about an hour from Zurich, Switzerland, high in the rocky Glarner mountains of the eastern Alps. As you can see from the photo, the area is so mountainous that road access for construction is impossible—thus the cableways.


Peak energy demand in the European grid is growing steadily. Consumption patterns and forms of production have changed considerably since construction of the original infrastructure. Production peaks/shortfalls from renewable power sources may require balancing at short notice. Also, security of supply has become a higher priority. These considerations all increase the usefulness of electric generators with peak-power storage. As well as providing power, Linthal 2015 will basically act as a huge battery.


Workers expect to complete the plant next year. (Their grandparents had a little practice with this type of project, having built an artificial lake [the Limmernsee] and an earlier 480 MW power plant lower down the mountain, at 1,900m above sea level, in the 1960s.) The new storage lake (Muttsee) will be 600 meters higher up the mountain than the Limmernsee. The lakes will be connected via two headrace tunnels and produce a net hydraulic head of 623 meters (2,044 ft).

 

A huge, deep cave with an inclined underground access gallery will house all the turbine and transformer machinery. Planned pump and turbine power is about 1,000 MW. With the output from the original facility, the Linthal 2015 project will produce easily as much power as a nuclear generating station. It will rank among the top 15 pumped-storage plants in the world.


The cablecar system will be dismantled when a funicular railway inside the gallery is complete. The railway will transport large, heavy machine components—including 215-ton transformers—and personnel directly from the base installation site of Tierfehd, near the foot of the mountain, to the turbine cavern. 380 kV cables run along the gallery shoulders will transmit the generated power.

Now, would you like to hear about the avalanche protection system?    ;D OK, maybe next time…. (If you really want to know, access the article by Thomas Rentsch and Ruedi Stüssi in the online Proceedings of the International Snow Science Workshop 2009.)

Keep up to date with all the hottest cleantech news by subscribing to our (free) cleantech newsletter, or keep an eye on sector-specific news by getting our (also free) solar energy newsletter, electric vehicle newsletter, or wind energy newsletter.

http://cleantechnica.com/2014/05/26/nuclear-strength-linthal-2015-takes-shape-swiss-alps/

AGelbert:
RusHydro Starts-Up New 640-MW Unit at Sayano-Shushenskaya, Two More Coming Soon

 Linas Jegelevicius, International Correspondent 
 May 27, 2014 

JSC RusHydro, Russia’s largest power-generating company, has announced that a new 640-MW hydropower unit has been commissioned at the company’s Sayano-Shushenskaya hydropower plant (HPP), in addition to the other 8 hydropower units in operation at the plant. 



full story here: http://www.renewableenergyworld.com/rea/news/article/2014/05/rushydro-starts-up-new-640-mw-unit-at-sayano-shushenskaya-two-more-coming-soon

AGelbert:
Canadian News

05/15/2014

Hydro-Quebec celebrates 70th anniversary

Canadian provincial utility Hydro-Quebec celebrated its 70th anniversary in mid-April, noting that hydroelectric power was and continues to be part of the company's success.

Founded April 14, 1944, with the passage of an act establishing the Quebec Hydro-Electric Commission, Hydro-Quebec wasted little time breaking ground on its 1,178-MW Bersimis 1 and 869-MW Bersimis 2 hydro plants.

The boom in energy demand post-World War II quickly necessitated the construction of additional projects, with hydro plants on the Manicouagan River and Riviere Aux Outardes being built in the late 1950s.

Hydro-Quebec faced a pivotal moment in fall 1962 when the provincial government, headed by Jean Lesage, proposed the nationalization of all power utilities under the election slogan "Maitres Chez Nous," or "Masters in Our Own House." The movement led Hydro-Quebec to purchase 10 privately-held electric companies in May 1963 under the direction of Rene Levesque.

Since then, the utility has faced a number of challenges, including standardizing rates throughout the province, electrifying rural areas and setting up an effective distribution grid.

The company now operates 61 hydro projects that have a cumulative capacity of more than 36,000 MW,  ;D manages 34,000 km of transmission lines, employees 20,000 people, supplies 4.1 million customers and controls assets worth US$66.6 million.


Changes to Upper Lillooet hydropower project

Canadian power producer Innergex Renewable Energy Inc. has reached agreements with provincial utility BC Hydro regarding components of the Upper Lillooet hydropower project.

The Upper Lillooet project - which would have included the 74-MW Upper Lillooet, 23-MW Boulder Creek and 16-MW North Creek hydropower stations - will be located on Crown land in British Columbia.

The project was granted environmental assessment certificates from the British Columbia government this past January.

The new agreement increases Upper Lillooet's capacity to 81.4 MW and Boulder Creek's to 25.3 MW. Meanwhile, the North Creek hydroelectric plant has been cancelled.

The project is being developed by Creek Power Inc., which is a joint venture between Innergex and the Ledcor Power Group Ltd.

Partnership announced for Jimmie Creek project

Alterra Power Corp. and Fiera Axium Infrastructure Inc. have announced a partnership agreement for the ownership and construction of the 62-MW Jimmie Creek hydroelectric plant. Under the deal, Alterra will own 51% of the project, while Fiera will own the remainder through a managed fund.

Alterra assumed 100% ownership of the project in November 2013 from General Electric, after signing development agreements with the Klahoose First Nation for its construction in May 2012. Construction is under way, with an expected completion date in August 2016.

"We are delighted to add another hydropower project to our diversified fund portfolio," Fiera executive Dominic Chalifoux said.

All power generated by Jimmie Creek will be sold to BC Hydro under a 40-year contract. Financial closing for the deal was expected later this quarter.

Canadian developer eyes pumped-storage projects   

Canadian company Turning Point Generation has announced its plan to develop a pumped-storage hydropower project in Alberta with a capacity of 80 to 150 MW.

The unnamed plant is TPG's first pumped-storage project, although one necessary, the company said, for the province's energy security.

TPG has identified several of what it calls "favorable" sites and will now move ahead on the project's development.

"This project is our most advanced, has exceptional inherent site characteristics and enjoys favorable reception from key stakeholders, including the First Nations involved," TPG official Peter Bubik said. "We believe the Alberta power market provides an economical basis for pumped-storage at this time and the market indications are showing increasingly favorable economics for pumped-storage in the future."

Briefly...

BC Hydro plans to conduct dam safety reviews at three dams: 22-MW La Joie Dam, 42-MW Seton Dam and Terzaghi Dam, which impounds water for two Bridge River generating stations.

http://www.hydroworld.com/articles/hr/print/volume-33/issue-4/departments/canadian-news.html

AGelbert:
http://www.youtube.com/watch?v=uRcEJ8cm9cA&list=TLx2VyfIBIN_nMCgldCi4KyPKcwFnYRTvm&feature=player_embedded
 :o ;D HUGE GENERATORS!

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